Anyray 36W 36Watts UV Sterilizer Replacement Bulb 2G11 Base Germicidal Lamp 36 Watt For residential drinking water, water and air treatment units, stand-alone purifiers and deactivation of bacteria, viruses and other micro-organisms Anyray AUVC-36W 110V-120V / 60Hz 100% Ozone Free Short-wave UV radiation with a peak at 253.7 nm (UVC) for disinfection purposes Length Overall: 16.50" or Length-Millimeters: 228.3mm or Length (installed): 16.25" Long Life Hours: 10,000hrs 2G11 Base 4-Straight Pin Base , Fit For Most UV Sterilizers On The USA Market